
MEA 3013
Passage
•
Physics
•
8th Grade
•
Hard
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of energy transformation occurs in the production of electricity by a hydroelectric dam?
chemical energy to heat energy
mechanical energy to electrical energy
electrical energy to mechanical energy
heat energy to chemical energy
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a solar eclipse, what object blocks the Sun?
an asteroid
a comet
Earth
the Moon
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor at the North and South poles makes the climate at the poles colder than the climate at the equator?
the presence of oceans
the lack of direct sunlight
the presence of ice caps
the lack of vegetation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do the differences in bill shape help these birds survive in the same region?
Each bill attracts a different type of predator.
Each bill is best for eating a different kind of food.
The bills are passed on randomly to the bird's offspring.
The bills allow the birds to remove pests from their bodies.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student has ham, fruit, bread, and juice for breakfast. Which food required the most energy per gram to be produced in the ecosystem?
ham
fruit
bread
juice
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The graph below shows the estimated global population from AD 1 to AD 2000. Based on this trend, which statement is the best prediction of the competition for and cost of scarce natural resources in the future?
Competition and cost of natural resources will both decrease.
Competition and cost of natural resources will both increase.
Competition for natural resources will increase, and cost of natural resources will decrease.
Competition for natural resources will decrease, and cost of natural resources will increase.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram below shows a copper wire loop situated near a bar magnet. What needs to be connected to the insulated wire to complete the circuit and to make the copper wire loop rotate?
a battery
a lightbulb
a digital meter
an electromagnet
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